CN108031847A - A kind of more powder composite materials and its preparation facilities and preparation method - Google Patents
A kind of more powder composite materials and its preparation facilities and preparation method Download PDFInfo
- Publication number
- CN108031847A CN108031847A CN201711222350.2A CN201711222350A CN108031847A CN 108031847 A CN108031847 A CN 108031847A CN 201711222350 A CN201711222350 A CN 201711222350A CN 108031847 A CN108031847 A CN 108031847A
- Authority
- CN
- China
- Prior art keywords
- feed device
- gas
- powder
- playpipe
- composite materials
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
Abstract
The invention belongs to powder metallurgical technology, discloses a kind of more powder composite materials and its preparation facilities and preparation method, using injection molding technology, including：The feedway of liquid metals raw material is set, and feedway is equipped with playpipe；Set and be embedded at the supporting jet deck of feedway, playpipe perforation in jet deck；The feed device for being used for providing powder body material is set；Gas mixer is set between feed device and jet deck, on gas mixer there is inert gas to be sent into passage, the powder body material that feed device provides can be mixed into suspended matter after gas mixer with inert gas, and the liquid metal droplet that suspended matter is finally fed to spray playpipe in jet deck smashes；In playpipe outlet, correspondence position sets the deposition circular turntable for being used for cooling down the liquid metals being crashed to pieces.By setting electric screw transmission device and gas mixer inert gas and powder body material is uniformly mixed, obtained composite material compositions are uniform.
Description
Technical field
The present invention relates to powder metallurgical technology, and in particular, to a kind of more powder composite materials and its preparation facilities
And preparation method.
Background technology
The brake apparatus performance of bullet train is extremely important, is directly related to the driving safety of bullet train.Bullet train
Disc material will have stable friction factor, density is low, specific heat capacity is high, thermal conductivity factor is high, thermal coefficient of expansion is small, hardness is high,
The features such as fatigue behaviour is excellent.Existing disc material is roughly divided into two major classes, and one kind is traditional ferrous material, including
Cast iron, cast steel and forged steel；Another kind of is composite material, including carbon/carbon fibre composite, aluminum matrix composite, Ceramic Composite
Material etc..Current most of bullet trains use cast steel or Forging Steel Brake Disc, and composite brake disk is also in research
In the stage, development potentiality is huge, wide market.
Spray forming technology be a kind of material for growing up of the purpose face based on energy saving, low consumption, low cost earliest into
Shape quickly solidifies new technology.Its principle is to be atomized liquid metal or alloy in an inert atmosphere, forms drop injection stream, directly
It is injected on colder matrix, by hitting, coalescing, solidification and the deposit that is formed, this deposit can be forged and pressed, squeezed
Pressure or rolling shape.
In order to manufacture some wear-resistant materials, enhancing powder body material is mixed into high pressure draught, by being atomized, hitting, coalescing
A kind of composite material is formed with solidification.At present, this composite material there are the problem of be enhancing powder in metallic matrix point
Cloth is uneven, and it is single to strengthen powder constituents, it is impossible to realizes the shortcomings of a variety of enhancing powders are mixed with.
The content of the invention
Present invention solves the technical problem that the defects of being to overcome the prior art, there is provided one kind is easy to operate, can obtain
The more powder composite materials and its preparation facilities and preparation method of even component composite material.
The object of the invention is achieved through the following technical solutions：
A kind of preparation method of more powder composite materials, using gas atomization and injection molding technology, including：
The feedway of liquid metals raw material is set, and the feedway is equipped with playpipe；
Set and be embedded at the supporting jet deck of feedway, the playpipe perforation in jet deck；
The feed device for being used for providing powder body material is set；
Gas mixer is set between feed device and jet deck, on gas mixer there is inert gas to be sent into logical
Road, the powder body material that feed device provides can be mixed into suspended matter after gas mixer with inert gas, suspend
The liquid metal droplet that thing is finally fed to spray playpipe in jet deck smashes；
In playpipe outlet, correspondence position sets the deposition circular turntable for being used for cooling down the liquid metals being crashed to pieces.
The powder body material added in the present invention is the suitable powder body material operated using gas atomization and injection molding.
Further, mixing machine is set, the powder body material in multiple feed devices is sent in mixing machine, then from mixed
It is delivered in barrel in gas mixer.
A kind of preparation facilities of more powder composite materials, including the feedway of liquid metals raw material, jet deck and at least
One feed device, the feedway bottom are equipped with playpipe, and jet deck is equipped with injection through hole, the spray of the feedway
Pipe intercalation is penetrated in injection through hole, playpipe outlet correspondence position is equipped with the deposition for being used for cooling down the liquid metals being crashed to pieces
Circular turntable；Further include the internal gas material conveying tube for being connected with inert gas, the gas material conveying tube after feed device terminal with
Jet deck connects, and gas mixer is additionally provided with the middle part of the gas material conveying tube between feed device and jet deck.
Further, the powder body material that multiple feed devices provide is re-fed into after finally converging in a mixing machine
Gas material conveying tube.
Further, the feed device includes storage tank, electric screw feed device, the powder material being placed in storage tank
Material can enter gas material conveying tube under the spiral transmission of electric screw feed device effect.
Further, the feed device further includes the manual transmission dress to connect with the end of electric screw feed device
Put.
Further, material control valve is additionally provided with to powder body material between the feed device or mixing machine and gas material conveying tube
Flow is adjusted.
Further, the inert gas is high-pressure liquid nitrogen.
A kind of more powder composite materials being prepared using above-mentioned preparation facilities are provided.
Compared with prior art, the invention has the advantages that：
1）By setting gas mixer uniformly to mix inert gas and powder body material, to realize that what is finally obtained answers
It is uniform to close powder constituents；
2）Deposition circular turntable can effectively ensure that injection to the metal liquid for being mixed with powder body material thereon is gradually molded into round casting
Ingot structure；
3）On the one hand electric screw feed device can make the speed of the feeding gas material conveying tube of powder body material controllable, on the other hand also
Can as needed in the multiple feed devices of reasonable disposition a variety of powder body materials additional proportion；
4）By operate material control valve can to the flow of powder body material carry out effectively and accurately regulate and control；
5）Manual transport apparatus can be when the electric functions of electronic transmission device fail, and powder material can equally be made by manually operating
Material is sent into gas material conveying tube；
6）The composite material compositions that the preparation facilities is simple and efficient to handle, is prepared are uniform, are good brake apparatus systems
Producing material material.
Brief description of the drawings
Fig. 1 is the structure diagram of the preparation facilities of more powder composite materials；
Fig. 2 is the local connection diagram of the manual transport apparatus and electronic transmission device；
Fig. 3 is the structure diagram of the gas mixer.
Embodiment
With reference to embodiment, the present invention is further illustrated, wherein, attached drawing only for illustration,
What is represented is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, some components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, some known features and its explanation may be omitted and will be understood by attached drawing.
Embodiment 1
As shown in Fig. 1~2, there is provided a kind of preparation facilities of more powder composite materials, includes the feedway of liquid metals raw material
1st, jet deck 2 and at least one feed device, 1 bottom of feedway are equipped with playpipe 11, and jet deck 2 is equipped with injection through hole,
In injection through hole, playpipe 11, which exports correspondence position and is equipped with, to be used to cool down the liquid being crashed to pieces for 11 intercalation of playpipe of feedway
The deposition circular turntable 4 of body metal, 11 end of playpipe are nozzle.
The setting of deposition circular turntable 4 makes injection to the raw metal for being compounded with powder body material thereon progressively accumulate rotation,
It is circular ingot casting structure to be packed together to cross section layer by layer.
It is more powder composite materials for make to finally obtain, powder is added in the raw metal that need to be ejected to feedway 1
Body material, therefore above-mentioned preparation facilities further includes the internal gas material conveying tube 5 for being connected with inert gas, gas material conveying tube 5 by way of
Terminal connects with jet deck 2 after feed device, so, powder body material can be sent into gas material conveying tube 5 simultaneously in feed device
It is transported to jet deck 2 to be used to be combined with raw metal, 5 terminal of gas material conveying tube is nozzle.
The preparation facilities of the present embodiment is intended to prepared composition uniformly more powder composite materials, to realize this important mesh
, the middle part of gas material conveying tube 5 that can be between feed device and jet deck 2 sets gas mixer 6, and gas mixer is such as
Shown in Fig. 3, i.e., the middle part of gas material conveying tube 5 is to swell to the cylindrical structural with larger blending space, and in cylindrical structural
Both ends be sphere closed, the junction height at wherein gas material conveying tube 5 and cylindrical structural both ends is different, i.e. powder is from gas
Gas material conveying tube 5 is connected in cylindrical structural bottom when material conveying tube 5 is delivered to gas mixer 6, when powder is in cylinder
In structure and when inert gas is delivered to gas material conveying tube terminal after mixing, gas material conveying tube is connected to cylindrical structural
Top.
Gas mixer 6 takes full advantage of fluid mechanics principle, and the powder body material entered in gas mixer 6 can
Suspended matter is mixed into by high pressure inert airflow stirring, so as to finally can uniformly spray into raw metal drop, is provided for drop
More heterogeneous equiax crystals, while drop is under the action of the chilling action of high-pressure inert gas and deposition circular turntable 4, finally
Form the composite material of circle ingot casting form.
The present embodiment need to only be added and sent it is further proposed that prepare a variety of powder body materials and the compound composite material of raw metal
Expect device, different feed devices provides different powder body materials, certainly because gas material conveying device 5 is continuously defeated
Suspended matter is sent, to ensure the homogeneity of ingredients of a variety of powder body materials finally in the composite, need to be delivered to powder body material
Acting in agreement in gas material conveying tube, therefore when there are during multiple feed devices, its a variety of powder body material provided need to be converged first
Gas material conveying tube 5 is re-fed into after in a mixing machine 7.
Specifically, feed device includes storage tank 31, electric screw conveying device 32 and motor 33, and wherein electric screw is defeated
Send and two-stage transmission is equipped between device 32 and motor 33, wherein what is be connected with motor 33 is to carry out belt biographies by two belt pulleys
Pass 34, be connected with electric screw conveying device 32 for gear engaged transmission 35, storage tank 31 is arranged on electric screw conveying device
32 are set close to one end of two-stage transmission, and the inside of electric screw conveying device 32 is conveyor screw, the powder being placed in storage tank 31
Body material can enter mixing machine 7 under the action of conveyor screw.
By the rotating speed of regulation motor 33, can flexible modulation electric screw conveying device 32 convey the speed of powder body material,
Based on this favourable design, the present embodiment can realize the demand of the powder body material of a variety of different proportions of reasonable disposition, i.e., same
In one period, the feeding speed of each powder body material is controlled, you can make the addition of each powder different, so as to finally obtain component
The different composite material of ratio.
For avoid motor 33 from breaking down or when motor is closed down influence the present embodiment preparation facilities composite material prepare into
Journey, the end of electric screw conveying device 32 is additionally provided with manual transport apparatus 36, foregoing to have mentioned electric screw conveying device 32
Two-stage transmission between motor 33, manual transport apparatus 36 are to be arranged on the belt pulley of control gear engaged transmission, specifically
Ground, manual transport apparatus 36 are handwheel, manually control handwheel also can be conveniently and efficiently toward conveying powder material in mixing machine 7
Material.
It is additionally provided with material control valve 8 between mixing machine 7 and gas material conveying tube 5 flow of powder body material is adjusted, material control valve 8
It can be common flow control valve, when powder body material is sent into too fast, material control valve be turned down, when powder body material was sent into slowly, is then opened
Big material controlling valve opening, when that need to suspend the addition of powder body material, closes down material control valve, the setting of material control valve, makes powder body material
Feeding process flexible it is controllable.
The inert gas of the present embodiment uses liquid nitrogen, and practicality is easy to get, this preparation facilities is easy to operate, and what is be prepared is compound
Material composition is various and uniform, has relatively broad actual application value.
Embodiment 2
A kind of preparation method of more powder composite materials is provided, using the equipment of embodiment 1, and coordinates gas atomization and injection
Forming technique, including：
The feedway of liquid metals raw material is set, and the feedway is equipped with playpipe；
Set and be embedded at the supporting jet deck of feedway, the playpipe perforation in jet deck；
The feed device for being used for providing powder body material is set；
Gas mixer is set between feed device and jet deck, on gas mixer there is inert gas to be sent into logical
Road, the powder body material that feed device provides can be mixed into suspended matter after gas mixer with inert gas, suspend
The liquid metal droplet that thing is finally fed to spray playpipe in jet deck smashes；
In playpipe outlet, correspondence position sets the deposition circular turntable for being used for cooling down the liquid metals being crashed to pieces.
The present embodiment coordinates more powder composite material purports of the present invention, is additionally provided with mixing machine, in multiple feed devices
Powder body material need to first be sent in mixing machine, then be uniformly delivered to from mixing machine in gas mixer, to avoid powder
The material uncontrollable problem of ratio in the composite.
Powder body material can be basalt, hard powders material clayed into power etc., wherein hard powders material concretely
WC、ZrO2, SiC, BN etc..
Obviously, above-described embodiment is only intended to clearly illustrate technical scheme example, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the field, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
All any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included in right of the present invention will
Within the protection domain asked.
Claims (9)
1. a kind of preparation method of more powder composite materials, it is characterised in that using gas atomization and injection molding technology, bag
Include：
The feedway of liquid metals raw material is set, and the feedway is equipped with playpipe；
Set and be embedded at the supporting jet deck of feedway, the playpipe perforation in jet deck；
The feed device for being used for providing powder body material is set；
Gas mixer is set between feed device and jet deck, on gas mixer there is inert gas to be sent into logical
Road, the powder body material that feed device provides can be mixed into suspended matter after gas mixer with inert gas, suspend
The liquid metal droplet that thing is finally fed to spray playpipe in jet deck smashes；
In playpipe outlet, correspondence position sets the deposition circular turntable for being used for cooling down the liquid metals being crashed to pieces.
2. the preparation method of more powder composite materials according to claim 1, it is characterised in that mixing machine is set, is made more
Powder body material in a feed device is sent in mixing machine, then is delivered to from mixing machine in gas mixer.
3. a kind of preparation facilities of more powder composite materials, it is characterised in that the feedway including liquid metals raw material, injection
Platform and at least one feed device, the feedway bottom are equipped with playpipe, and jet deck is equipped with injection through hole, the supply
In injection through hole, playpipe outlet correspondence position, which is equipped with, to be used to cool down the liquid gold being crashed to pieces for the playpipe intercalation of device
The deposition circular turntable of category；The internal gas material conveying tube for being connected with inert gas is further included, the gas material conveying tube is by way of feed device
Terminal connects with jet deck afterwards, and gas mixer is additionally provided with the middle part of the gas material conveying tube between feed device and jet deck.
4. the preparation facilities of more powder composite materials according to claim 3, it is characterised in that multiple feed devices
The powder body material of offer is re-fed into gas material conveying tube after finally converging in a mixing machine.
5. the preparation facilities of more powder composite materials according to claim 3 or 4, it is characterised in that the feed device
Including storage tank, electric screw feed device, the powder body material being placed in storage tank can be in the spiral of electric screw feed device
Transmission effect is lower to enter gas material conveying tube.
6. the preparation facilities of more powder composite materials according to claim 5, it is characterised in that the feed device also wraps
Include the manual transport apparatus to connect with the end of electric screw feed device.
7. the preparation facilities of more powder composite materials according to claim 4, it is characterised in that the feed device is mixed
Material control valve is additionally provided between barrel and gas material conveying tube the flow of powder body material is adjusted.
8. the preparation facilities of more powder composite materials according to claim 3, it is characterised in that the inert gas is height
Hydraulic fluid nitrogen.
9. the more powders being prepared using the preparation facilities of more powder composite materials described in claim 3 to 8 any one
Composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222350.2A CN108031847A (en) | 2017-11-29 | 2017-11-29 | A kind of more powder composite materials and its preparation facilities and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222350.2A CN108031847A (en) | 2017-11-29 | 2017-11-29 | A kind of more powder composite materials and its preparation facilities and preparation method |
Publications (1)
| Publication Number | Publication Date |
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| CN108031847A true CN108031847A (en) | 2018-05-15 |
Family
ID=62092743
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711222350.2A Pending CN108031847A (en) | 2017-11-29 | 2017-11-29 | A kind of more powder composite materials and its preparation facilities and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907195A (en) * | 2018-08-29 | 2018-11-30 | 中国人民解放军空军工程大学 | A kind of online controllable alloy increasing material manufacturing apparatus and method of ingredient tissue |
| CN109576524A (en) * | 2018-12-13 | 2019-04-05 | 湖南大学 | A kind of preparation facilities and its method of grain-mixing strengthened aluminium-base composite material slurry |
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| JPH01127629A (en) * | 1987-11-10 | 1989-05-19 | Sumitomo Electric Ind Ltd | Production of hard alloy |
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| CN203725109U (en) * | 2013-12-14 | 2014-07-23 | 郑州四方耐火材料有限公司 | Pneumatic pressurizing, mixing and feeding system |
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2017
- 2017-11-29 CN CN201711222350.2A patent/CN108031847A/en active Pending
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| JPH01127629A (en) * | 1987-11-10 | 1989-05-19 | Sumitomo Electric Ind Ltd | Production of hard alloy |
| CN1176148A (en) * | 1997-06-24 | 1998-03-18 | 煤炭科学研究总院北京煤化学研究所 | Fluid mixer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907195A (en) * | 2018-08-29 | 2018-11-30 | 中国人民解放军空军工程大学 | A kind of online controllable alloy increasing material manufacturing apparatus and method of ingredient tissue |
| CN109576524A (en) * | 2018-12-13 | 2019-04-05 | 湖南大学 | A kind of preparation facilities and its method of grain-mixing strengthened aluminium-base composite material slurry |
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Application publication date: 20180515 |